Some Insights on Unsteady Double Diffusive Natural Convection of Porous Medium in Vertical Open-Ended Cylinder
作者： N. Himrane , D. E. Ameziani , M. El Ganaoui , H. Ragueb
DOI: 10.1007/S13369-018-3541-3
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摘要: The work presented in this paper deals with combined heat and mass transfer by natural convection porous media. aim is to investigate numerically the effect of control parameters on flow behavior as well enhancement vertical enclosure. side wall temperature periodic function time which case several physical problems. Darcy’s model coupled energy equations considered. numerical results show that flow’s strongly dependent buoyancy ratio values. Three types flows take place: chimney, reversal top aspiration flow. Further, (N) at different occur significantly influenced values parameters. relative between constant periodical profoundly affected thermal Rayleigh number (Ra), dimensionless amplitude (XA). In opposing double diffusive flow, difference becomes favor stationary for high Ra XA.
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